Pacific Island Ecosystems at Risk (PIER)

  [   PIER species lists  ]   [   PIER home  ]

Cajanus scarabaeoides
(L.) Thouars, Fabaceae
No images for this taxon


Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Atylosia scarabaeoides (L.) Benth.; Cantharospermum scarabaeoides (L.) Baill.

Common name(s): [more details]

Chinese: man cao chong dou

English: peanut grass, tropical clover

Habit:  vine

Description:  "Vines, woody, twining or trailing, to 2 m. Stems slender, ± pubescent. Leaves pinnately 3-foliolate; stipules small, ovate, hairy, usually deciduous; petiole 1-2 cm; stipels absent; petiolules extremely short; leaflets papery or nearly leathery, with glandular spots, sparsely pubescent on both surfaces, denser abaxially, basal veins 3, obviously convex below; terminal leaflet elliptic or obovate-elliptic to obovate, 1.2-4 x 0.8-1.5 (-3) cm, apex obtuse or rounded; lateral leaflets smaller, obliquely elliptic to obliquely obovate. Raceme axillary, usually less than 2 cm, 1-5-flowered; peduncle 2-5 mm, densely brown to dull brown villous. Calyx campanulate, 5-lobed, or 4-lobed with upper 2 incompletely connate; lobes linear-lanceolate. Corolla yellow, ca. 1 cm, usually deciduous; standard obovate, with emarginate auricle and claw at base; wings narrowly elliptic, slightly curved, base auriculate; keels curved at apex, densely very pale brown villous. Ovules several. Legume oblong, 1.5-2.5 x 0.4-0.6 cm, leathery, densely villous, transversely constricted between seeds. Seeds 2-7, dark brown, ellipsoidal, ca. 4 mm; strophiole convex"  (Flora of China online).

"Perennial, prostrate or climbing, wiry-stemmed, pubescent vine with non-stipellate trifoliate leaves, the leaflets obovate with rounded tips, tomentose on both sides with soft hairs, grayish-green, up to 2.5 cm long and 1.2 cm wide, the lateral leaflets mostly symmetrical; flowers usually in groups of 2 in axils, about 6 mm long, reddish-orange; fruit a densely pubescent brownish pod, slightly constricted between the seeds, about 1-1.3 cm long and 6 mm wide, with 3-6 brown roundish seeds"  (Stone, 1970; p. 327).

Habitat/ecology:  A weed of open grasslands on Pacific islands (Stone, 1970; p. 327).  In Fiji, "forming thick mats, or climbing, at elevations from near sea level to 300 m as a locally common weed along roadsides, on sand dunes, and in open fields and pastures" (Smith, 1985; p. 253).

Propagation:  Seed

Native range:  Madagascar eastward to tropical Asia (Stone, 1970; p. 327).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Alamagan Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 103)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Guguan Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 103)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Pagan Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 103)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Rota Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 103)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Saipan Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 103)
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Tinian Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 103)
Fiji
Fiji Islands
Viti Levu Island introduced
invasive
Smith, Albert C. (1985) (p. 253)
As Atylosia scarabaeoides. Vouchers cited: Greenwood 731, 731A, 731B, 731C; DA 10728; DA 10280; DA 5974, DA 9290 (McKee 2860), DA 7389 (L.3049), DA 10749
Guam
Guam Island
Guam Island introduced
invasive
Stone, Benjamin C. (1970) (p. 327)
Papua New Guinea
Papua New Guinea (eastern New Guinea Island)
Papua New Guinea (eastern New Guinea Island) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Philippines
Philippine Islands
Philippine Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Philippines
Philippine Islands
Philippine Islands   Merrill, Elmer D. (1923) (p. 315)
In open grasslands at low and medium altitudes.
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Australia
Australia (continental)
Northern Territory native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Australia
Australia (continental)
Queensland native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
China
China
China (People's Republic of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
"Fields, roadsides, grassy slopes, seasides; below 100-1500 m".
China
China
Hong Kong native
Wu, Te-lin (2001) (p. 139)
Indonesia
Indonesia
Indonesia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Java
Japan
Ryukyu Islands
Ryukyu Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Malaysia
Malaysia
Malaysia (country of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Taiwan
Taiwan Island
Taiwan Island native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
"Fields, roadsides, grassy slopes, seasides; below 100-1500 m".
Thailand
Thailand
Thailand (Kingdom of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Vietnam
Vietnam
Vietnam (Socialist Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Indian Ocean
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
La Réunion (France)
La Réunion Island
La Réunion Island introduced
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Mauritius
Mautitius Islands (Mauritius and Rodrigues)
Mauritius Island introduced
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Mauritius
Mautitius Islands (Mauritius and Rodrigues)
Rodrigues Island introduced
U.S. Dept. Agr., Agr. Res. Serv. (2013)


Need more info? Have questions? Comments? Information to contribute? Contact PIER! (pier@hear.org)

  [   PIER species lists  ]   [   PIER home  ]

This page was created on 1 JAN 1999 and was last updated on 14 DEC 2010.